Wednesday, June 19, 2013

One of the odder, and a little scary, pests that occasionally enter homes in Texas is the kissing bug, Triatoma species. Kissing bugs aren't very good kissers, but they get their name from their habit of biting sleeping humans on the face at night. Even worse, the "kiss" of the kissing bug can sometimes bring with it a parasite, Trypanosoma cruzi, that causes Chagas' disease.

If you are a blood donor you may have heard of Chagas' disease. It's one of those mysterious illnesses you get asked about before you give blood. Thankfully, it's not thought to be common in the U.S., but is a very prevalent in some parts of Central and South America. Recently there has been growing concern that Chagas' disease may be becoming more common in the U.S., and that it's occurrence might be underestimated.

A research team at Texas A&M University is beginning to study the different kissing bugs in Texas. They hope to learn more about where kissing bugs are active, where different species are found, what hosts they prefer, and how often the parasite infects the bugs.

Triatoma kissing bug are 1/2 to one inch-long.

If you come across a kissing bug, the Hamer Labs team would be interested in getting samples. It's important not to touch the kissing bug (they could be carrying germs and they can bite), but scoop it up in a small container or plastic bag. If the bug is collected in a client's home, advise them to clean any surfaces that the bug may have crawled on with a disinfectant cleaner. If you find a kissing bug and want to donate it to the project, they ask that you first contact them via the email address kissingbug@cvm.tamu.edu. They will provide you with specifics on how and where to send.

Tuesday, June 18, 2013

It would be nice if we all would be motivated to do the right thing solely by the promises of good things (carrots!). But in reality most of us need painful consequences (the proverbial stick!) to keep us consistently honest. That's the reason for the new Texas Department of Agriculture (TDA) penalty matrix.

On June 14 the TDA and the Structural Pest Control Service published new penalty guidelines and a penalty matrix (table) for companies in violation of pest control rules and regulations. The TDA has always worked from a table of penalties, though the industry rarely saw it. The new penalty guidelines and tables are an attempt to make the process more transparent to your business and the public.

Because these are not new rules or regulations, the penalty matrix does not require public input, though the TDA has indicated that it will accept and consider comments and recommendations. Draft versions of the matrix were previously shown to the Texas Pest Control Association and the Structural Pest Control Advisory Committee, and comments were incorporated into the final draft published last week. The matrix will go into effect July 1.

As a member of the Advisory Committee I hear comment from many of you concerning enforcement of rules. I know one of the major concerns by conscientious applicators around the state is that penalties be significant, yet fair and consistently enforced. The new matrix does involve increases in some fines, and is designed to encourage more consistency in penalty assessment over the previous matrix.

The table allows the TDA some freedom in determining the exact fine, and a fine may be higher that indicated on the table depending on intent of the violator and consequences of the violation. I encourage everyone with a structural pest control business to become familiar with the matrix, and review it with employees this summer as a reminder that the carrot is always better than the stick.

These inch-long beetles in the genus Harpalus are the latest insect Texas plague to hit homes, businesses and schools.

The insect of the week, at least in east Texas, is a carabid beetle in the genus Harpalus.

Ground beetles are fast-moving, predators that, as the name implies, forage on the ground. Outdoors they and their likewise predaceous larvae are found on the ground in all habitats, both grassy and forested areas.

Ground beetles have little interest in coming indoors, where there is little food. However they may accidentally enter homes or businesses when they slip under doors in their escape from daylight. Outdoors they hide under rocks, leaves, logs, etc. during the daylight hours.

Most ground beetles are relatively strong fliers and will be readily attracted to lights during their nocturnal mating flights. Typically these flights occur once a year over a one or two week period.

The current flurry of calls about what one inquirer called those “crunchy black beetles” is likely the result of a recent mating swarm. The current ground beetle invasion will be short-lived, but other species of ground beetles, like the caterpillar hunter, may be evident at other times of year. None of these species pose any real harm to people or pets (some have large enough jaws to bite if you pick them up), and they do help feed the birds.

No chemical control should be necessary for ground beetles. Beetles that are drawn into lights are either (1) going to be eaten by birds or other predators, or (2) going to fly away the next evening. The best advice you can give customers who don’t like having all those crunchy beetles around, is to consider turning off the outdoor lighting around the account for part or all of the night. This should be necessary for only a week or so, until the flights subside.

If a customer insists on some control action, be aware of the recent label changes for pyrethroid insecticides. New pyrethroid labels do not allow application to concrete surfaces that will be exposed to rain. This would include sidewalks around buildings, and sides of buildings over concrete that not protected by eaves or canopies from the rain. Granular baits designed for crickets or cockroaches will not be effective against these predatory beetles. For more information about ground beetles, the University of Kentucky has published a nice summary.

Thursday, June 13, 2013

If you've ever performed a bed bug control job you know it's not something you get exactly right the first time. Bed bug control requires knowledge of the pest, knowledge of the technologies available to control the pest, experience looking for the pest, and lots of muscle memory.

The new bed bug publication from Texas
A&M AgriLife Extension packs lot of tips
and information into 7 pages. Download it
free online.

If you've paid your dues, learned the routine, and think you've gotten pretty good at bed bugs, don't you wish prospective clients would recognize that? Well now there's a new publication that might help. How to Select a Bed Bug Provider (ENTO-033) is the latest entomology fact sheet from Texas A&M AgriLife Extension.

By leading the reader through the different treatment approaches, and suggesting how to interview a prospective pest control company, this publication is designed to match bed bug sufferers to the best PMP. Sections include:

What to look for in a pest control company

Approaches to bed bug control

Preparation

Warranties and follow-up

Cost

Bagging tips

Special considerations for apartment managers

In addition, we've included an interview card to help the user objectively compare you to other bidders. Criteria include experience, technician training and support, preparation requirements, good communication, monitoring, professionalism, warranty and follow-up.

If you're really good at bed bug control, chances are that this guide will prospective customers see that. Maybe it should have a place among your sales material for future bed bug jobs.

Tuesday, June 11, 2013

Stephen Vantassel, Wildlife Damage Project Coordinator at the University of Nebraska, recently held a webinar covering management of voles, moles and pocket gophers. Fortunately, thanks to the modern technology of webinar playback, the presentation is saved online so that you can view the information at your leisure.

The thing I appreciate most about Stephen's presentation is his emphasis on wildlife IPM. Listening to the presentation I was particularly gratified to hear that wildlife management specialists have the same frustration as entomologists when it comes to IPM. The first question that I almost always get about an insect pest is "what's the best spray to kill it?" The reason this question is frustrating is that management of any pest is much more about understanding the pest, and about habitat modification. IPM is not just about what chemical or special trap to use, its about correcting the conditions that lead to the pest problem.

So if you have interest in voles, moles or pocket gophers, check out this presentation when you have an extra 50 minutes. You'll get a good overview of an IPM approach to these three important landscape pests.

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About Me

I have served as entomology specialist for Texas AgriLife Extension since 1989. I get to work with, and for, a bunch of great people including pest management professionals, school facilities managers, extension volunteers, researchers and other extension professionals. My areas of specialty center on research on insects affecting man including spiders, scorpions, fire ants, termites and others. My program also focuses on training school maintenance professionals in principles of integrated pest management (IPM). Our goal is to make schools healthier, cleaner places to study and live.